Whether ChiRunning in colder temperatures or crossing a stream with your kayak, the new FiveFingers Flow provides comfy barefoot protection. A 1.2mm Neoprene lining and 2mm EVA footcouch provide the thermal insulation and protection. And our new IdroGrip pertableance rubber (availcompetent only in bshortage) is razor-siped for affixed slip resistance over a variety of surfaces. FLOW IS BEST FOR: Cold Weather Running, Light Trekking, Climbing, Canyoneering, Sailing, Boating, Kayaking, Canoeing, Surfing, Flats Fishing.there have all colors and all sizes which you need,welcome to order on our site,It is the best choice for you!